PRK (photorefractive keratectomy) is a type of refractive surgery to correct myopia (nearsightedness), hyperopia (farsightedness) and astigmatism.
Overview Of PRK
PRK was the first type of laser eye surgery for vision. Though PRK recovery takes a bit longer than recovery from LASIK eye surgery, PRK is still commonly performed and offers advantages over LASIK for some patients. Like LASIK and other types of laser eye surgery, PRK works by reshaping the cornea, allowing light entering the eye to be correctly focused onto the retina for clear vision. It helps people to have an even more beautiful, shiny face by getting rid of all kinds of glasses and its side effects on the face.
PRK Recommended For:
- Patients with up to -11.00 diopters of nearsightedness, up to +5.00 of farsightedness and up to 5.00 of astigmatism.
- Persons looking to get rid of the continual cost and side effects involved in glasses and contact lens use.
- Athletes who require the freedom offered by refractive surgery.
Before photorefractive keratectomy (PRK)
Before PRK eye surgery, the patient will meet with an eye doctor to go through medical history taking and eyes will be fully examined; Likely initial tests include measuring corneal thickness, refraction, corneal mapping, eye pressure, and pupil dilation will be done.
During photorefractive keratectomy (PRK)
First, the eye surgeon removes a central area of corneal epithelium with an alcohol solution. Next, an excimer laser is used to precisely reshape the curvature of cornea’s surface. A soft contact lens “bandage” is then placed on the cornea to help protect the eye. New epithelial cells grow back in about four or five days, after which the bandage contact lens is removed by the eye doctor.
After photorefractive keratectomy (PRK)
Most of the time, the doctor will apply a bandage contact lens after surgery. Patients will wear it for the first 5 to 7 days to let the surface of the eye to heal. Patients will have to see an eye doctor with their medical records at least a few times during the next six months. The first visit is usually one day after surgery; the second visit, in which the doctor will remove the contact lens, happens about a week later.